Coordinates: Latitude: 31.682358 Longitude: -91.675591
— From US 84, head north on La 566. Go 5.1 miles to
marker on right.
— From US 425/La 15, head west on La 566. Go 10.8 miles
to marker on left.
of Mounds: 1
of Visible Mounds: 1
Grove is one of the best-preserved conical mounds in northeast
Louisiana. It’s near a lake that used to be part of the
Tensas River. The mound measures about 10 feet high and 115 feet
in diameter at its base. A small pond about 60 feet north of the
mound may be a borrow pit where soil was removed for mound construction.
Two cores from the mound show that it was built in one stage over
a thick midden (accumulated debris from previous occupants). Radiocarbon
dating of organic material from beneath the mound suggests that
the mound was built about AD 750, during the late Troyville or
early Coles Creek periods. Few artifacts have been recovered from
the site and its immediate surroundings, which is unusual. It
is said that there are two historic burials in the mound.